S80 Year 2004 Lost of Coolant!

Jonathan Loh · Post by **Jonathan Loh** » 18 Aug 2009, 09:18

Hi, I am writing from Singapore:)

I have a " big unsolved problem" with my S80 2.0T year 2004. 3 weeks ago, the radiator/hoses / expansion tank were replaced. After collecting my car from workshop, after driving for a few days the warning light appeared " Coolant low" and I have been topping up every morning. At first I thought it was maybe due to some leakage or " air lock" in the system! This morning I returned to my workshop they checked through all hoses, no trace of leakage! They even carry out a " Pressure test" from the expansion tank. it was 2 bars and no drop in pressure.

Still I found coolant lost.......

I have done a check later today evening e.g. exhaust no white smoke, dip stick did not find any " milky" lub oil.

Please advise what could be the possible cause! I really need to settle this problem. Thanks

Post by **dcarlson12** » 18 Aug 2009, 14:01

http://wiki.answers.com/Q/Why_would_you ... ak_evident

Would a faulty radiator cap possibly cause the problem? And maybe only after the engine heats up?

Jonathan Loh · Post by **Jonathan Loh** » 18 Aug 2009, 18:58

Thanks for your respond. The radiator cap was just replaced.
There isn't any lost of engine power!

Jonathan Loh · Post by **Jonathan Loh** » 18 Aug 2009, 19:01

I heard some say it might be head gasket leak, but the question is I don't find any water in the lub oil and isn't any white smoke found. Is really a big headache:(

Jonathan Loh · Post by **Jonathan Loh** » 19 Aug 2009, 06:43

Today, I have no choice just to get the engine top overhaul and replaced the gasket. Now my pocket burn a big hole

it cost me S$1600.00